Individual and integrated effect of urea and NAA on flowering and fruiting of mango (Mangifera indica L.).
Baghel B. S., Rajesh Tiwari
Author Affiliation: Department of Fruit Science (Hort.) Jawaharlal Nehru Krishi Vishwa Vidyalaya, Jabalpur - 482 004 (M.P.), India.
South Indian Horticulture 51 : 1-6
Abstract : Studies were conducted on 72 uniform 8- to 9-year-old trees in 1996-97 (on year) and 1997-98 (off year) of mango cv. Sunderja growing in Jabalpur, Madhya Pradesh, India. Two sprayings of 0, 2, 4 and 6% urea as well as 0, 30, 60, 90, 120 and 150 ppm NAA and their combinations were performed in October and November with an interval of 30 days (5 October and 5 November) during both years. The flower number per panicle, percentage of hermaphrodite flowers, number of healthy panicles/m2 and total number of fruits per tree were lowest in the control. Combined application of 6% urea + 150 ppm NAA was superior for increasing the total flower number per panicle and percentage of hermaphrodite flowers. Flowering and fruiting (number of healthy panicles/m2 and fruit number per tree) were highest in the combined application of 4% urea + 150 ppm NAA.